A - Use of an antagonist to reverse dangerous side effects of an analgesic medication 是指使用拮抗剂来预防止痛药的危险副作用
B - The combination of different types of analgesic medications and procedures to treat pain 是指不同类型的镇痛药物和程序的组合
C - Administration of pain medication prior to elective surgery and stimulation of the pain response 是指在手术准备期和疼痛刺激之前使用止痛药
D - Use of higher doses of pain medication given previously to a patient to achieve adequate analgesia 是指先前给患者使用更高剂量的止痛药以达到足够的镇痛效果
E - Treatment with pain medication during surgery and prior to recovery of a patient 是指在手术期间和患者康复前用止痛药治疗